Blade-sharpening attachment for phonographs.



I. U. FUCHS. 'BLADE SHARPENING ATTACHMENT FOR PHONOGRAPHS.

APPLICATION FILED MAII. Io. 1919. 1,31 6,948. Patentedsept. 23,19%

2 SHEETS-.SHEET 2.

OFFICE.

JULIUsu. rncns,or SEATTLE, wasnumron.-

To all whom it may concern:

Be i-t known that I, .lomos U. Focus -a citizen of the' United States,resil at cattle, in the countyV of King and te of-Washington,-haveinvented a new and 'useful Improvement invBlade-Sharpenin Attachments for Phondgraphs, of whic the following is aspecification.

.The primary object of 'my invention is to utilize the motor-poweremployed for driving the rotatory table which supports the record-diskin 'a phonograph, for sharpent ing blades, and more especiallysafety-razor blades. To that end my invention is an attaclunentcomprising a pair of stropping or honing members geared 'together to be"rotated on their axes in relatively opposite directions by rotation ofthe table, and a blade-holder connected with the gearing tobe'os'cillatorily actuated to bear against the opposite edges of a bladeheld in the holder alternately against the aforesaid members.

In the accompanying drawings, Figure 1 is a broken plan view of aphonograph with my attachment in place thereon; Fig. 2 is a plan View ofthe attachment with the topplate of the frame removed to display thegearing and other parts-g Fig. 3 is a front end view of the attachment;Fig. lis a view in elevation of the supporting leg and top plate of theattachment; and Fig. A5 is a section on line 55, Fig. 1, showing theblade-holder and other parts in elevation.

The frame of the device, when constructed as shown, though itniay'involve any other suitable construction, has a top-plate 7 witlr alil-shaped leg 8 on one end provided with an 'expanded bas; l. Athumb-screw 10 secures the leg and the plate together` and `isfastenedby a nut 11. A rectangular bracket 12 is secured at one end to thevunder side of the plate 7 near its rear end and is provided at itsopposite forward end with an expanded base 9a, on a level with the base9. A shaft 13 is journaled in the base 9a and bracket 12 and passesthrough the plate,l below which it carries a relatively large frictiondrive-wheel 14 adapted to be adjusted up and down on the shaft and fas-50 ytened by a set-screw 15 in itsiadjusted position. In a relativelysmall rectangular bracket 16 secured to the underside of the plate nearits forward end is journaled a shaft/13* extending parallel with theshaft lili ,'13 and thrpugh'the plate. These two shafts y:itrgetlrer bycorresponding .u nr'racmmnr ron. Pnonoamrns.

I l specnaanomtanmm Patented sepaea, 1919. Application-ala :men 1o,191s. smal no. 281,889.

l I l toothed wheels 417, 17 secured on them below the plate; and eachcarries, above the plate, and, removably, a cylindrical razor-'.

stroppingor razor-honing Sharpener 18. Thepurpose of rendering t esemembers removable, as b withdrawing each lengthwise from its s aft, isto adapt the s tropping cylinders to be substituted for the honingcyllnders 'and vice versa The shaft 13* 85 carnes on its lower end apinion 19 meshing wlth a relatively large toothed wheel 20 journaled onthe under side of the plate 7 near its cen-ter and carrying asemi-circular cam 21 in position to engage the adjacent 70 end of aspring-pressed arm 22 pivoted at its opposite end, at 23, to the underside of the plate near the rear end of the latter.A This arm carriesbetween its ends a finger 2l projecting upwardly through an elon- 75gated transverse'sloti25 in the plate 7.

-A shaft 26 rises rigidly from the top of the frame-plate behind and ona line midway between the Shafts 13 and 13a and carries, to beoscillated,\a blade-holder 27 30 having a rearwardly-extendingtail-piece 28, through an openin in which the finger 2i projects. Thishol er has a pair of fol'- Wardly converging spring jaws 429, 30. Ascrew- 31 projects from the inner face of 85 the jaw 29 through thecompanion-jaw 'and carries a thumb-nut 32, by tightening of which asafety-razor blade 33 may be clamped between the jaws in position tocause oscillation of the holder to bear the edges of the blade to bestropped or honed alternately against the Sharpeners 18. An adjustablegage 34 is provided on the outer face of the jaw 29 for properly settingthe blade in the holder.

The operative position of my attachment is on the platform 35 of -aphonograph, to' which it issecured, at'the bases 9 and 9, adjacent therotating table 36 for carrying the record-disks. In that position, whenthe 100 attachment is outofuse the Wheel 14 is held by the set-screw ina plane 4dii'erent from that occupied by the record-table. When it isdesired to use the attachment, after adjusting in the holder 27 a bladeto be sharp- 10b' ened, the wheel 14 is adjusted onjthe shaft 13 intoposition to contact its perlphery with that of the table 36, driving ofwhich by the phonograph-motor drives the parallel s afts 13 and 13a inrelatively opposite directlons, 110 andthe gear 2O to rotate the cainl.In one-half oi'each revolution of this. gear'20 the anni beerl v:ignimitthe :irin und turns it, in opposition to its spring, in e directionwherein resultant engagement of the linger 24; with the teil-piece 28turns the bledeholderto bringl one edge of the blade to be sharpenedagainst one of the two rolls or Sharpeners 18. "At the end of thatlia-lf of rotating sharpening medium during onehnlf o'j the revolutionol the gear 20, thus for n sullieient length of time is the stroppinp;or honing operation against each eide of the blade-edge.

The blade-holder may he readily lifted off its supporting shaft forlnnidling it in removing a. sherpened blade and adjusting n blade to besharpened between the holder jews; and it muy be as readily returned toits operative position.

I realize that considerable variation is possible in the details ol'construction thus specifically shown and described, and l do not.intend'by illustrating n. single speeiie embodiment o'iny 'invention tobe limited thereto, my intention being in the following' 'claims toclaim protection upon ell the nov! elt)v there muy be in 'my invention':1s fully ne the stilte of the nrt 'will permit.

l Claim:

l. A blznle-elnirpening phonographs, comprising7 attachment for incombination y against the :i1-1n.

Lemerre with zi freine, e parir of rotatable blnd'ei eem end having nfinger engaging seid.'

holder to oeeillete. it by the eanreetion A bladesherpening attachmentfor phonographs, @minimising e frame, means for attaching sind treme tothe platform of the phonograph, e shaft married by Said,

frame, .1 relativelj,T large iietionii'lieel ad- ]ustably mounted on.sind shaft and adapted to be rotated by Contact with the revolving tableo the phonogrepli7 e rotatable bladeeh-rirpening member carried by sindshaft, a. sevond shalt carried by sind lrenne, n rotan tableblade-sharpening member eerried by said second shaft, gearing connectingseid shafts to canse their rotation in opposite directione, :iblade-holder nrried by the traine, n eeni carried by one of sind.shafts., und :L spring-preSsed nrin extending into `the path of the Cainto he "actuated tl'iereby und connected with seid holder to canse it tobe oefen-.ated and the edges of the blade ,zirried thereby toalterne-rely Contact with f said bflade-slmrpening members. i

JLUS U. FUCHS.

